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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

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Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a
Basic Types of Energy Basic Types of Energy
Peptide bond formation Peptide bond formation
Anatomy Of Large Intestine Anatomy Of Large Intestine
Relative Energy Consumption per Person for Selected Countries Relative Energy Consumption per Person for Selected Countries
Thumb, knuckle slides, and kneading (as appropriate) to energy meridians in the upper arm in 5 ... Thumb, knuckle slides, and kneading (as appropriate) to energy meridians in the upper arm in 5 ...
Video: Glycolysis - Introduction to ATP and the burning of sugar

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